Su Yunjin said she would undress herself, and Gu Ya did not object. Just a moment ago, when Gu Ya helped his little wife undress, he accidentally touched her wounds several times. Afraid of touching them again, Gu Ya thought it would be quite alright for her to undress herself. So Gu Ya stood there, waiting for his little wife to undress.
Su Yunjin first untied her belt, then her outer garment. The wound was on her waist, and it only required her to loosen her inner garment and pull it aside a little to see the injury.
Since she hadn't taken off all her clothes, only her waist was exposed. Despite this, Su Yunjin showed no signs of embarrassment undressing in front of Gu Ya.
Indeed, Su Yunjin's hunch was spot on. Her waist was swollen just like her wrist and had bruises. Compared to the redness and swelling on her wrist, the bruises on Su Yunjin's waist were even more severe. When Gu Ya saw the bruises on his little wife's waist, his handsome face turned even darker.